| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license |
| * agreements. See the NOTICE file distributed with this work for additional information regarding |
| * copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the License. You may obtain a |
| * copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| |
| package org.apache.fluo.command; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.util.List; |
| |
| import javax.inject.Provider; |
| |
| import com.beust.jcommander.Parameter; |
| import com.beust.jcommander.Parameters; |
| import com.google.inject.AbstractModule; |
| import com.google.inject.Guice; |
| import org.apache.fluo.api.config.FluoConfiguration; |
| import org.apache.fluo.core.client.FluoAdminImpl; |
| |
| @Parameters(commandNames = "exec", |
| commandDescription = "Executes <class> with <args> using classpath for <app>") |
| public class FluoExec extends BaseCommand implements FluoCommand { |
| |
| private static class FluoConfigModule extends AbstractModule { |
| |
| private Class<?> clazz; |
| private FluoConfiguration fluoConfig; |
| |
| FluoConfigModule(Class<?> clazz, FluoConfiguration fluoConfig) { |
| this.clazz = clazz; |
| this.fluoConfig = fluoConfig; |
| } |
| |
| @Override |
| protected void configure() { |
| requestStaticInjection(clazz); |
| bind(FluoConfiguration.class).toProvider((Provider<FluoConfiguration>) () -> fluoConfig); |
| } |
| } |
| |
| @Parameter(description = "<app> <class> args...", variableArity = true) |
| private List<String> args; |
| |
| @Override |
| public void execute() throws FluoCommandException { |
| if (args.size() < 2) { |
| throw new FluoCommandException("Usage: fluo exec <app> <class> args..."); |
| } |
| final String applicationName = args.get(0); |
| final String className = args.get(1); |
| |
| FluoConfiguration fluoConfig = CommandUtil.resolveFluoConfig(); |
| fluoConfig.setApplicationName(applicationName); |
| CommandUtil.verifyAppInitialized(fluoConfig); |
| fluoConfig = FluoAdminImpl.mergeZookeeperConfig(fluoConfig); |
| |
| try { |
| Class<?> clazz = Class.forName(className); |
| |
| // inject fluo configuration |
| Guice.createInjector(new FluoConfigModule(clazz, fluoConfig)); |
| |
| Method method = clazz.getMethod("main", String[].class); |
| List<String> execArgs = args.subList(2, args.size()); |
| method.invoke(null, (Object) execArgs.toArray(new String[execArgs.size()])); |
| } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) { |
| throw new FluoCommandException(String.format("Class %s must have a main method", className), |
| e); |
| } catch (ClassNotFoundException e) { |
| throw new FluoCommandException(String.format("Class %s not found", className), e); |
| } |
| } |
| |
| public List<String> getArgs() { |
| return args; |
| } |
| } |